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HTTP/2 support test

HTTP/2 frequently asked questions

What is HTTP/2?

HTTP/2 is a new version of HTTP protocol.
It’s goal is to improve website performance
by optimizing how HTTP is transferred "on-the-wire".
It doesn’t change the semantics of HTTP,
which means that HTTP headers, status codes, etc.
work exactly the same way as in HTTP/1.

What are the key performance improvements?

HTTP/2 protocol is multiplexed which means that
multiple requests can use the same TCP connection and thus website assets
can be requested in parallel. HTTP/1, in contrast,
requires each request to use its own TCP connection and thus website assets
are requested sequentially.

HTTP/2 protocol allows browser to use stream priority mechanism.
Stream priority mechanism is a mechanism for browsers to load HTML content
for a web page first, followed by CSS, then JavaScript, and finally images.
This allows browsers to render web pages quickly.

HTTP/2 protocol automatically compress HTTP headers. This reduces
the amount of data that needs to be transferred between a browser and a server.

Which browsers support HTTP/2?

What if viewer's browser doesn't support HTTP/2?

If viewer's browser doesn't support HTTP/2 protocol then our CDN edge server will automatically
communicate with the browser over HTTP/1 protocol.

Does HTTP/2 require SSL?

HTTP/2 protocol does not require SSL encypted connection, but all current browsers support HTTP/2 protocol
only for SSL encrypted connections. It means that to use HTTP/2 protocol you must
use a CDN service with SSL enabled
and integrate it over https://
scheme.